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Editorial Team
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Asked: 2026-06-13T15:33:45+00:00

I have a bunch of automatically generated JSON files that I want to store

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I have a bunch of automatically generated JSON files that I want to store in version control. The problem is that each time the files are serialized, the attributes come out in a different order, making it hard to know if the files have really changed and / or what the real differences are.

Does anyone know of an existing open source tool that will perform this task?

Failing that, does anyone know of a JSON library with a parser and a generator that can be configured to output “pretty” JSON with the attributes in (say) lexical order? (A Java or Ruby library would be ideal, but other leads are also welcome.)

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1 Answer

  1. Editorial Team

    Python’s JSON module is very usable from other programs:

    generate_json | python -mjson.tool > canonical.json
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